Bulk Lighthouse Audit — PageSpeed Scores Without an API Key

PageSpeed-style Lighthouse scores for a whole list of pages, with no Google API key, no daily quota and no setup. Send web addresses and get one audit per page: performance, accessibility, best-practices and SEO scores (0–100), the lab Core Web Vitals and loading metrics — Largest Contentful Paint, Cumulative Layout Shift, Total Blocking Time, First Contentful Paint, Speed Index, server response time, page weight — and every audit the page fails, with its id and title. Mobile or desktop.

Pay per audited page. Use it to rank a site's pages or a client portfolio by score, compare before and after a release, or schedule a weekly check on your landing pages.

Every audit is run by this Actor with Google Lighthouse 13.5.0 in its own headless Chrome — the same open-source engine (Apache License 2.0) behind Chrome DevTools and PageSpeed Insights. It does not call the PageSpeed Insights API, so there is no Google API key, no daily quota and no extra fee.

Use it three ways:

• Site or portfolio audit. Send every important page of one site, or the home pages of all your clients, and sort by score.
• Before-and-after checks. Audit the same addresses before and after a release, a theme change or a CDN switch.
• Monitoring. Schedule a run each week on your key landing pages and watch the scores and LCP over time.

Who buys this and for what job

• SEO agencies and consultants producing performance and technical-SEO reports for many client sites at once.
• Web developers and agencies checking speed and accessibility before and after a launch.
• E-commerce and marketing teams watching landing-page speed, which affects conversion and ad quality.
• Accessibility and QA teams screening many pages for common accessibility failures.
• Lead-generation and sales teams qualifying websites by how slow or dated they are.

Sample output

One record from live run c8ij5zydVNENdO9RI (2 October 2026, mobile settings):

{
  "record_id": "LH:988c511fc2e9",
  "requested_url": "https://www.python.org/",
  "final_url": "https://www.python.org/",
  "form_factor": "mobile",
  "performance_score": 83,
  "accessibility_score": 75,
  "best_practices_score": 96,
  "seo_score": 92,
  "first_contentful_paint_ms": 2908,
  "largest_contentful_paint_ms": 3957,
  "total_blocking_time_ms": 42,
  "cumulative_layout_shift": 0.003,
  "speed_index_ms": 2908,
  "time_to_interactive_ms": 4105,
  "server_response_time_ms": 2,
  "total_byte_weight_bytes": 483110,
  "failing_performance_audits": [
    {
      "id": "largest-contentful-paint",
      "title": "Largest Contentful Paint",
      "score": 51
    },
    {
      "id": "first-contentful-paint",
      "title": "First Contentful Paint",
      "score": 53
    },
    {
      "id": "cache-insight",
      "title": "Use efficient cache lifetimes",
      "score": 0
    },
    {
      "id": "image-delivery-insight",
      "title": "Improve image delivery",
      "score": 0
    },
    {
      "id": "network-dependency-tree-insight",
      "title": "Network dependency tree",
      "score": 0
    },
    {
      "id": "render-blocking-insight",
      "title": "Render-blocking requests",
      "score": 0
    },
    {
      "id": "unminified-css",
      "title": "Minify CSS",
      "score": 0
    },
    {
      "id": "unused-css-rules",
      "title": "Reduce unused CSS",
      "score": 0
    },
    {
      "id": "unused-javascript",
      "title": "Reduce unused JavaScript",
      "score": 0
    },
    {
      "id": "font-display-insight",
      "title": "Font display",
      "score": 50
    },
    {
      "id": "unminified-javascript",
      "title": "Minify JavaScript",
      "score": 50
    },
    {
      "id": "interactive",
      "title": "Time to Interactive",
      "score": 86
    }
  ],
  "failing_accessibility_audits": [
    {
      "id": "aria-required-children",
      "title": "Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children.",
      "score": 0
    },
    {
      "id": "aria-required-parent",
      "title": "`[role]`s are not contained by their required parent element",
      "score": 0
    },
    {
      "id": "aria-hidden-focus",
      "title": "`[aria-hidden=\"true\"]` elements contain focusable descendents",
      "score": 0
    },
    {
      "id": "color-contrast",
      "title": "Background and foreground colors do not have a sufficient contrast ratio.",
      "score": 0
    },
    {
      "id": "list",
      "title": "Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).",
      "score": 0
    },
    {
      "id": "listitem",
      "title": "List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements.",
      "score": 0
    },
    {
      "id": "tabindex",
      "title": "Some elements have a `[tabindex]` value greater than 0",
      "score": 0
    }
  ],
  "failing_best_practices_audits": [
    {
      "id": "errors-in-console",
      "title": "Browser errors were logged to the console",
      "score": 0
    }
  ],
  "failing_seo_audits": [
    {
      "id": "link-text",
      "title": "Links do not have descriptive text",
      "score": 0
    }
  ],
  "lighthouse_version": "13.5.0",
  "throttling_method": "simulate",
  "benchmark_index": 2051,
  "run_warnings": [],
  "source": "Google Lighthouse 13.5.0, run by this Actor in its own headless Chrome against the address you supplied (https://github.com/GoogleChrome/lighthouse)",
  "source_dataset": "Lighthouse audit — performance, accessibility, best-practices and SEO categories, mobile settings",
  "licence": "Lighthouse is open-source software under the Apache License 2.0. This audit was generated by this run; the audited page belongs to its owner and no page content is copied into the record.",
  "attribution": "Audit produced with Google Lighthouse (Apache License 2.0); reformatted by NexGen Signal.",
  "observed_at": "2026-10-03T05:20:17Z"
}

What you get in each record

Field	Meaning
performance_score, accessibility_score, best_practices_score, seo_score	Lighthouse category scores, 0–100
largest_contentful_paint_ms, cumulative_layout_shift, total_blocking_time_ms	Lab Core Web Vitals (TBT is the lab stand-in for Interaction to Next Paint)
first_contentful_paint_ms, speed_index_ms, time_to_interactive_ms	Other loading metrics
server_response_time_ms, total_byte_weight_bytes	Main-document response time and total page weight
failing_*_audits	Up to 15 failing audits per category: Lighthouse audit id, title and score
requested_url, final_url, form_factor	What was audited, where redirects ended, mobile or desktop settings
source, source_dataset, licence, attribution, observed_at	Provenance stamped on every record

Scores are lab results from one Lighthouse run with simulated throttling on Apify's servers. They follow the same scoring as PageSpeed Insights but can differ by a few points from run to run and from one machine to another (benchmark_index records the machine's CPU benchmark). Field data from real Chrome users (CrUX) is not included.

Input

{
  "urls": ["https://www.python.org/", "https://www.wikipedia.org/"],
  "formFactor": "mobile",
  "maxRecords": 2
}

• urls — up to 5,000 addresses per run; https:// is added when missing.
• formFactor — mobile (Lighthouse default, as shown first in PageSpeed Insights) or desktop.
• maxRecords — the most audits delivered and billed in this run.
• pageTimeoutSecs — how long to wait for a page to load (default 60).

Audits run one after another so that one page's load does not slow another's score: allow about 10–25 seconds per page. The default run timeout is 12 hours, enough for roughly 2,500 or more pages in one run; raise it in the run options for larger lists.

What is skipped and never charged

• Robots.txt. Before auditing, the Actor reads robots.txt on the exact host of each address. Addresses disallowed for all robots (or for Chrome-Lighthouse or NexGenSignal) are skipped.
• Private and local addresses (localhost, 10.x, 192.168.x, cloud metadata addresses and similar), addresses with a user name or password, non-web schemes and duplicates.
• Pages that cannot be audited: host names that do not resolve, pages returning an error status, pages that never finish loading.

Each address and its outcome — audited, excluded, failed or not attempted — is listed in the RUN_RECEIPT record of the run's key-value store. Only audited pages create dataset records, and only dataset records are charged: the dataset row count always equals the charged count.

Privacy

Records hold scores, metric numbers and Lighthouse audit ids and titles only. Page text, HTML snippets, screenshots, cookies and request lists are not copied into the record, so personal data that appears on an audited page does not end up in your dataset.

Pricing

Apify plan	Price per audit record
Free	$0.05
Bronze	$0.045
Silver	$0.04
Gold, Platinum, Diamond	$0.0335

One record = one audited address. You set the maximum with maxRecords, and you can also set a maximum total charge in the run options: the Actor stops before auditing a page it could not charge for.

Run end states

• Delivered N website audit(s) — everything audited.
• PARTIAL — some addresses were audited; the others were excluded or failed (listed in the receipt, not charged).
• CAPPED — stopped at your maximum total charge.
• Every address was checked, but none could be audited under the rules — nothing charged.
• SOURCE UNAVAILABLE — none of the pages attempted could be audited; nothing charged.

Only invalid input fails a run.

Source and licence

Audits are produced with Google Lighthouse 13.5.0, open-source software under the Apache License 2.0, run inside this Actor. Each audited page belongs to its owner; the record holds measurements of the page, not its content. Lighthouse and Chrome are trademarks of Google LLC; this Actor is not affiliated with or endorsed by Google.

Part of NexGen Signal — official-source data products.